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发表于 2006-06-09 16:52 |只看该作者 |倒序浏览

import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;

import javax.imageio.ImageIO;

/*******************************************************************
* 该JavaBean可以直接在其他Java应用程序中调用，实现屏幕的"拍照"
* This JavaBean is used to snapshot the GUI in a
* Java application! You can embeded
* it in to your java application source code, and us
* it to snapshot the right GUI of the application
* @see javax.ImageIO
* @author liluqun (liluqun@263.net)
* @version 1.0
*
*****************************************************/

public class GuiCamera
{
private String fileName; //文件的前缀
private String defaultName = "GuiCamera";
static int serialNum=0;
private String imageFormat; //图像文件的格式
private String defaultImageFormat="png";
Dimension d = Toolkit.getDefaultToolkit().getScreenSize();

/****************************************************************
   * 默认的文件前缀为GuiCamera，文件格式为PNG格式
   * The default construct will use the default
   * Image file surname "GuiCamera",
   * and default image format "png"
   ****************************************************************/
public GuiCamera() {
   fileName = defaultName;
   imageFormat=defaultImageFormat;

}

/****************************************************************
   * @param s the surname of the snapshot file
   * @param format the format of the  image file,
   * it can be "jpg" or "png"
   * 本构造支持JPG和PNG文件的存储
   ****************************************************************/
public GuiCamera(String s,String format) {

   fileName = s;
   imageFormat=format;
}

/****************************************************************
   * 对屏幕进行拍照
   * snapShot the Gui once
   ****************************************************************/
public void snapShot() {

   try {
   //拷贝屏幕到一个BufferedImage对象screenshot
      BufferedImage screenshot = (new Robot()).createScreenCapture(new
         Rectangle(0, 0, (int) d.getWidth(), (int) d.getHeight()));
      serialNum++;
      //根据文件前缀变量和文件格式变量，自动生成文件名
      String name=fileName+String.valueOf(serialNum)+"."+imageFormat;
      File f = new File(name);
      System.out.print("Save File "+name);
   //将screenshot对象写入图像文件
      ImageIO.write(screenshot, imageFormat, f);
      System.out.print("..Finished!\n");
   }
   catch (Exception ex) {
      System.out.println(ex);
   }
}

public static void main(String[] args)
{
      GuiCamera cam= new GuiCamera("d:\\Hello", "png");//

      cam.snapShot();
}
}